He also held several bilateral meetings, including with Russian PM Dmitry Medvedev.

Pahor said in the debate moderated by Austrian Foreign Minister Sebastian Kurz, that there was just one way to ensure peace in the Western Balkan and that was through Euro-Atlantic integration.

The EU enlargement process must continue, while the EU itself must be strengthened, he told the debate also featuring Macedonian President Gjorge Ivanov, Croatian President Kolinda Grabar-Kitarović and the prime ministers of Montenegro, Georgia and Kosovo, Mile Đukanović, Giorgi Kvirikashvili and Isa Mustafa, respectively.

According to Pahor's office, the president held a meeting with the Assistant Secretary of State for European and Eurasian Affairs at the United States Department of State, Victoria Nuland, this morning.

The pair exchanged views on topical security issues and discussed the cooperation between Slovenia and the US within NATO.

He then met the EU's High Representative for Foreign Affairs and Security Policy Federica Mogherini with talks focussing on humanitarian aid and ways to end to hostilities in Syria.

They agreed that the deal on cessation of hostilities in Syria reached at the conference was a new hope for the country. According to Pahor, it is also a sign that there could be no permanent solution for peace in the Middle East without cooperation and coordinated plans for peace operations.

Touching on the issue of migration, they agreed that only well coordinated measures can strengthen the EU's external border and prevent the migrations to cause conflicts in the Western Balkans.

Mogherini thanked Slovenia for its "constructive role" in bringing Western Balkan countries closer to Euro-Atlantic alliances.

The talks with Medvedev were also dominated by the situation in Syria. Pahor reiterated Slovenia supported Ukraine's territorial integrity and the implementation of the Minsk agreement.

Pahor and the Russian prime minister agreed that political dialogue must be preserved and a peaceful solution to the situation found.

Being an EU and NATO member, Slovenia wishes Russia and the West to find political solutions both to the Middle East conflict and Ukraine, Pahor said.

Commenting on Medvedev's statement that Russia and the West are facing a "new Cold War", which raised dust today, Pahor said that "like many others" he found the statement "upsetting" and that it represented a "step back" at the conference "which is otherwise trying to be constructive".

Pahor said he had asked Medvedev if he though the statement was justified. "He replied that he nevertheless thinks we are not in that situation yet," Pahor said.

Asked who should make more concessions regarding Syria the West or Russia, Pahor said that now was not the time for showing of muscles.

"The problems have become such a threat to international peace and security that those who are the most responsible and have the most power must realise such actions are not productive."

Pahor thinks though that there is still enough time for diplomacy. "At this point there is still time for those of us who support peace. If we fail, those who believe in war will come. I believe our children do not deserve such a future," he said.

The Slovenian president also attended an informal meeting hosted by Croatian President Kolinda Grabar-Kitarović to present a new Adriatic-Baltic-Black Sea initiative and discussed the upcoming summit of the Brdo-Brijuni regional cooperation initiative in Bosnia and Herzegovina with the country's prime minister. He discussed the European prospects of Georgia with PM Giorgi Kvirikashvili.